DongEun Koak / mbed-src

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Fork of mbed-src by mbed official

targets/hal/TARGET_WIZNET/TARGET_W7500x/us_ticker.c@558:0880f51c4036, 2015-06-03 (annotated)

Committer:
mbed_official
Date:
Wed Jun 03 09:00:09 2015 +0100
Revision:
558:0880f51c4036
Child:
576:99a3d3d9c43f
Synchronized with git revision 927c31ab8457cfef0ee8a8316117b7a41fd79133



Full URL: https://github.com/mbedmicro/mbed/commit/927c31ab8457cfef0ee8a8316117b7a41fd79133/



Add WIZwiki-W7500

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 558:0880f51c4036 1 /* mbed Microcontroller Library
mbed_official 558:0880f51c4036 2 *******************************************************************************
mbed_official 558:0880f51c4036 3 * Copyright (c) 2015 WIZnet Co.,Ltd. All rights reserved.
mbed_official 558:0880f51c4036 4 * All rights reserved.
mbed_official 558:0880f51c4036 5 *
mbed_official 558:0880f51c4036 6 * Redistribution and use in source and binary forms, with or without
mbed_official 558:0880f51c4036 7 * modification, are permitted provided that the following conditions are met:
mbed_official 558:0880f51c4036 8 *
mbed_official 558:0880f51c4036 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 558:0880f51c4036 10 * this list of conditions and the following disclaimer.
mbed_official 558:0880f51c4036 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 558:0880f51c4036 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 558:0880f51c4036 13 * and/or other materials provided with the distribution.
mbed_official 558:0880f51c4036 14 * 3. Neither the name of ARM Limited nor the names of its contributors
mbed_official 558:0880f51c4036 15 * may be used to endorse or promote products derived from this software
mbed_official 558:0880f51c4036 16 * without specific prior written permission.
mbed_official 558:0880f51c4036 17 *
mbed_official 558:0880f51c4036 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 558:0880f51c4036 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 558:0880f51c4036 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 558:0880f51c4036 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 558:0880f51c4036 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 558:0880f51c4036 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 558:0880f51c4036 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 558:0880f51c4036 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 558:0880f51c4036 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 558:0880f51c4036 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 558:0880f51c4036 28 *******************************************************************************
mbed_official 558:0880f51c4036 29 */
mbed_official 558:0880f51c4036 30
mbed_official 558:0880f51c4036 31 #include <stddef.h>
mbed_official 558:0880f51c4036 32 #include "us_ticker_api.h"
mbed_official 558:0880f51c4036 33 #include "PeripheralNames.h"
mbed_official 558:0880f51c4036 34 #include "system_W7500x.h"
mbed_official 558:0880f51c4036 35
mbed_official 558:0880f51c4036 36 // 32-bit timer selection
mbed_official 558:0880f51c4036 37 #define TIM_MST7 PWM_CH7
mbed_official 558:0880f51c4036 38 #define TIM_MST6 PWM_CH6
mbed_official 558:0880f51c4036 39 #define IRQn_PWM6 PWM6_IRQn
mbed_official 558:0880f51c4036 40
mbed_official 558:0880f51c4036 41 static PWM_TimerModeInitTypeDef TimMasterHandle_CH7;
mbed_official 558:0880f51c4036 42 static PWM_TimerModeInitTypeDef TimMasterHandle_CH6;
mbed_official 558:0880f51c4036 43
mbed_official 558:0880f51c4036 44 static int us_ticker_inited = 0;
mbed_official 558:0880f51c4036 45
mbed_official 558:0880f51c4036 46
mbed_official 558:0880f51c4036 47 #ifdef __cplusplus
mbed_official 558:0880f51c4036 48 extern "C"{
mbed_official 558:0880f51c4036 49 #endif
mbed_official 558:0880f51c4036 50 void PWM6_Handler(void)
mbed_official 558:0880f51c4036 51 {
mbed_official 558:0880f51c4036 52 uint32_t IntFlag = 0;
mbed_official 558:0880f51c4036 53
mbed_official 558:0880f51c4036 54 IntFlag = PWM_CHn_GetIntFlagStatus(TIM_MST6);
mbed_official 558:0880f51c4036 55
mbed_official 558:0880f51c4036 56 /* If overflow interrupt is occurred */
mbed_official 558:0880f51c4036 57 if( (IntFlag & PWM_CHn_IER_OI_Msk) != 0 )
mbed_official 558:0880f51c4036 58 {
mbed_official 558:0880f51c4036 59 /* Clear overflow interrupt */
mbed_official 558:0880f51c4036 60 PWM_CH6_ClearOverflowInt();
mbed_official 558:0880f51c4036 61 us_ticker_irq_handler();
mbed_official 558:0880f51c4036 62 }
mbed_official 558:0880f51c4036 63 }
mbed_official 558:0880f51c4036 64
mbed_official 558:0880f51c4036 65 #ifdef __cplusplus
mbed_official 558:0880f51c4036 66 }
mbed_official 558:0880f51c4036 67 #endif
mbed_official 558:0880f51c4036 68
mbed_official 558:0880f51c4036 69 void us_ticker_init(void)
mbed_official 558:0880f51c4036 70 {
mbed_official 558:0880f51c4036 71 if (us_ticker_inited) return;
mbed_official 558:0880f51c4036 72 us_ticker_inited = 1;
mbed_official 558:0880f51c4036 73
mbed_official 558:0880f51c4036 74 SystemCoreClockUpdate();
mbed_official 558:0880f51c4036 75 TimMasterHandle_CH7.PWM_CHn_PR = (GetSystemClock() / 1000000) -1;
mbed_official 558:0880f51c4036 76 TimMasterHandle_CH7.PWM_CHn_LR = 0xFFFFFFFF;
mbed_official 558:0880f51c4036 77 TimMasterHandle_CH7.PWM_CHn_PDMR = 1;
mbed_official 558:0880f51c4036 78
mbed_official 558:0880f51c4036 79 PWM_TimerModeInit(TIM_MST7, &TimMasterHandle_CH7);
mbed_official 558:0880f51c4036 80 PWM_CHn_Start(TIM_MST7);
mbed_official 558:0880f51c4036 81 }
mbed_official 558:0880f51c4036 82
mbed_official 558:0880f51c4036 83
mbed_official 558:0880f51c4036 84 uint32_t us_ticker_read()
mbed_official 558:0880f51c4036 85 {
mbed_official 558:0880f51c4036 86 if (!us_ticker_inited) us_ticker_init();
mbed_official 558:0880f51c4036 87
mbed_official 558:0880f51c4036 88 return (TIM_MST7->TCR);
mbed_official 558:0880f51c4036 89 }
mbed_official 558:0880f51c4036 90
mbed_official 558:0880f51c4036 91
mbed_official 558:0880f51c4036 92 void us_ticker_set_interrupt(timestamp_t timestamp)
mbed_official 558:0880f51c4036 93 {
mbed_official 558:0880f51c4036 94 int32_t dev = 0;
mbed_official 558:0880f51c4036 95 if (!us_ticker_inited)
mbed_official 558:0880f51c4036 96 {
mbed_official 558:0880f51c4036 97 us_ticker_init();
mbed_official 558:0880f51c4036 98 }
mbed_official 558:0880f51c4036 99
mbed_official 558:0880f51c4036 100 dev = (int32_t)(timestamp - (us_ticker_read() + 150));
mbed_official 558:0880f51c4036 101
mbed_official 558:0880f51c4036 102 if(dev <= 0)
mbed_official 558:0880f51c4036 103 {
mbed_official 558:0880f51c4036 104 us_ticker_irq_handler();
mbed_official 558:0880f51c4036 105 return;
mbed_official 558:0880f51c4036 106 }
mbed_official 558:0880f51c4036 107
mbed_official 558:0880f51c4036 108 PWM_CHn_Stop(TIM_MST6);
mbed_official 558:0880f51c4036 109
mbed_official 558:0880f51c4036 110 SystemCoreClockUpdate();
mbed_official 558:0880f51c4036 111 TimMasterHandle_CH6.PWM_CHn_PR = (GetSystemClock() / 1000000) -1;
mbed_official 558:0880f51c4036 112 TimMasterHandle_CH6.PWM_CHn_LR = dev;
mbed_official 558:0880f51c4036 113
mbed_official 558:0880f51c4036 114 TimMasterHandle_CH6.PWM_CHn_UDMR = 0;
mbed_official 558:0880f51c4036 115 TimMasterHandle_CH6.PWM_CHn_PDMR = 0;
mbed_official 558:0880f51c4036 116
mbed_official 558:0880f51c4036 117 NVIC_EnableIRQ(IRQn_PWM6);
mbed_official 558:0880f51c4036 118
mbed_official 558:0880f51c4036 119 PWM_CHn_IntConfig(TIM_MST6, PWM_CHn_IER_OIE, ENABLE);
mbed_official 558:0880f51c4036 120 PWM_IntConfig(TIM_MST6, ENABLE);
mbed_official 558:0880f51c4036 121 PWM_TimerModeInit(TIM_MST6, &TimMasterHandle_CH6);
mbed_official 558:0880f51c4036 122
mbed_official 558:0880f51c4036 123 PWM_CHn_Start(TIM_MST6);
mbed_official 558:0880f51c4036 124 }
mbed_official 558:0880f51c4036 125
mbed_official 558:0880f51c4036 126 void us_ticker_disable_interrupt(void)
mbed_official 558:0880f51c4036 127 {
mbed_official 558:0880f51c4036 128 NVIC_DisableIRQ(IRQn_PWM6);
mbed_official 558:0880f51c4036 129
mbed_official 558:0880f51c4036 130 PWM_CHn_IntConfig(TIM_MST6, PWM_CHn_IER_OIE, DISABLE);
mbed_official 558:0880f51c4036 131 PWM_IntConfig(TIM_MST6, DISABLE);
mbed_official 558:0880f51c4036 132 }
mbed_official 558:0880f51c4036 133
mbed_official 558:0880f51c4036 134 void us_ticker_clear_interrupt(void)
mbed_official 558:0880f51c4036 135 {
mbed_official 558:0880f51c4036 136 PWM_CHn_ClearInt(TIM_MST6, PWM_CHn_IER_OIE);
mbed_official 558:0880f51c4036 137 }